each one is uniqueTypically Chalcedony tends to be one color, however these specimens of chalcedony have multiple bands of color.
The specimen I received has bands that are white and others that have various intensities of brown. There was even a band that was a light olive green color and yet another that has the same gray color of a Tahitian pearl.
I recommend this species of Chalcedony to gem collectors. September 30, 2014